// Thud - a dynamic object-oriented language
// Copyright (C) 2009,2010 David H. Hovemeyer <david.hovemeyer@gmail.com>

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

/*
 * ConstantString.cpp
 *
 *  Created on: Dec 2, 2009
 *      Author: dhovemey
 */

#include <cassert>
#include <functional>
#include "util/DataInputStream.h"
#include "util/DataOutputStream.h"
#include "vm/IConstantVisitor.h"
#include "vm/ConstantString.h"

ConstantString::ConstantString()
	: Constant(CONSTANT_STRING)
{
}

ConstantString::ConstantString(const std::wstring &value)
	: Constant(CONSTANT_STRING)
	, m_value(value)
{
}

ConstantString::~ConstantString()
{
}

uint8_t ConstantString::getTagByte() const
{
	return CONSTANT_STRING_TAG;
}

std::wstring ConstantString::asString(ConstantPool *cp) const
{
	return m_value;
}

void ConstantString::accept(IConstantVisitor *visitor)
{
	visitor->visitConstantString(this);
}

bool ConstantString::compare(const Constant *other) const
{
	assert(getType() == other->getType());
	return std::less<std::wstring>()(m_value, static_cast<const ConstantString*>(other)->m_value);
}

void ConstantString::read(DataInputStream *in)
{
	m_value = in->readString();
}

void ConstantString::write(DataOutputStream *out) const
{
	out->writeString(m_value);
}
